It All Came From Pencils 2

Geometry Level 1

Hazri prepared another two pencils and he aligned them as shown in the diagram above.

The two pencils form an angle which is labelled \(y\) (\(\angle ACD\)) in the diagram. If the angle of the pencil tip (\(\angle A\)) is \(40^\circ\) and the angle of the pencil tip (\(\angle ECD\)) is \(30^\circ\), then what is the value of \(y\)?

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